All Questions
Tagged with motor electric-bike
14 questions
3
votes
1
answer
69
views
Hub motor engagement issue
I have replaced a damaged planetary gear in my rear hub motor and faced the following issue: when powered, the rotor rotates, but somehow the wheel does not (or rotates very slightly). When I open the ...
- 141
0
votes
1
answer
65
views
Changing a hub motor on an e-bike: tricky connection
My e-bike hub motor appears to need a replacement (generates almost no torque when powered and, most importantly, when the wheel is rotated backward, it resists and the motor makes a very loud ...
- 141
0
votes
0
answers
90
views
Motor makes a very strong grinding noise under specific conditions
I recently bought an EUENI FXH009, very affordable chinese ebike. I'm very happy with it, it's very nice for the price but there seems to be some kind of problem with the motor.
When accelerating ...
2
votes
1
answer
65
views
Motor sometimes not engaging on a moustach lundi 27.5 with bosch performance line motor
The issue I'm encountering sounds similar to Riese Muller with Bosch performance CX not engaging immediately - but may be slightly different.
In a little more detail:
The bike usually starts fine, but ...
- 178
1
vote
0
answers
38
views
Choosing a battery for my motor/controller
I'll keep this concise. While I'm pretty overwhelmed with all the reading I've been doing, I believe I'm close to making a decision and need a sanity check on the following:
I purchased a Bafang ...
- 11
1
vote
1
answer
199
views
I have a still boxed Viribus 26" rear-wheel ebike kit - I'd like to remove its pre-fitted gear cogs and fit wheel with motor to front forks instead
...the Viribus kit's motor(kit bought via Amazon) is of the slim but wide-diameter kind. My eyes and calipers suggest to me that if the gear cogs are removed the motorised rear wheel axle should quite ...
- 11
2
votes
3
answers
2k
views
E-bike motor stopping momentarily during steep climbs
I have a Batavus Zonar 2020 e-bike, Yamaha motor, 10 gear cassette, 5500km of use.
Recently the motor has stopped working momentarily during very steep climbs - it just shuts off for a second then ...
- 171
-2
votes
1
answer
185
views
Carrera impel IS1 scooter
customer brought in carrera impel IS1 scooter and its pretty new. Max speed should be 15.5mph at the moment it goes just under 10mph. New motor, new ECU been fitted. Is it something to do with the ...
- 33
1
vote
1
answer
471
views
Which mid drive motors use the same frame interface?
One concern with mid drive e-bikes is that if the motor breaks in ten years, probably there is no exact replacement available. But do the manufacturers keep the same interface for their different ...
- 1,779
5
votes
1
answer
516
views
Opening up a geared hub motor
I have a 10 year old eWind Classic, and the hub motor makes horrible noises when under high load. It used to be silent. So I want to replace the planetary gears and bearings.
Printed on the hub motor ...
- 327
3
votes
1
answer
97
views
Front hub motor makes clacking noise only when nut tightened
I have a Bafang SWXK2 e-bike front hub motor. It has been use for 7 years, about 10 000 km ridden and has worked well so far. But now it is making a clacking noise.
Symptoms:
Clacking noise ...
- 1,847
25
votes
4
answers
2k
views
What characterizes a future-proof ebike drive system?
Ebikes had their origins in modular drive systems that were assembled by enthusiasts and specialty companies choosing their own motors, batteries, battery controllers, motor controllers, and displays. ...
- 88.2k
6
votes
3
answers
566
views
Electric bicycle frequently stops working when slope is too high. Cannot find notice
I use my mom's no-name electric bicycle for my daily commute. It is only 3-4 kilometers but there is a big slope. The bicycle's brand and model is Opus E-MOTION, but I cannot find anything online ...
- 161
1
vote
1
answer
318
views
Can the Grin Technology phaserunner series be used in total headless mode? (No display, POS sensor or torque sensor, bluetooth & throttle only)
One of my old e-bike has a broken component and is subjected to upgrade, as most of the vendors have either disappeared or declare the component as end-of-lifecycle.
I'm considering Grin PhaseRunner ...
- 119